Back in stock. Best viewed as the tumultuous fall-out between a pair of dubstep’s most enduring DJ’s, ‘Dubstep Allstars 4’ sees Youngsta and Hatcha squaring up with a CD fenced off for each to do their thing. Starting with disc one, Youngsta comes to the plate with an astonishing level of restraint – choosing to open with a cavernous mix that leaves plenty of room for your imagination to play tricks… Kicking off with Skream’s ‘Dub Period’ and rattling through the likes of Loefah, D1, Headhunter and Digital Mystikz, Youngsta encourages things to ooze along with a real syrupy intent – cranking things up a gear as Loefah’s ‘System’ takes the mix down a dark and moody alley-way, before D1’s couched ‘Greazy’ lights it all up and shows the link between dubstep and grime in its starkest realisation yet. Elsewhere, Headhunter’s ‘Descent’ (a veritable mainstay of dubstep’s rise) is a wonderfully stilted coalition of half-chewed beats, cheek-popping synth-horns and cracked-varnish digitalis, D1’s mix of Skream’s ‘Warning’ is a gut-busting blast of furnace hot low-end action, whilst Digital Mystikz’ ‘Hunter’ ups the tension with some borderline horror melodies. All that and we’ve still got a whole mix to go… Moving on to the second set, Hatcha looks to the first half of the ‘dubstep’ compound, with a mix that opens through a run of deep and heat-blistered low-end – balling you out through the Skream vs. Hijak monster ‘Babylon Timewarp’. From here on in Hatcha throws up old favourites like Skream’s ‘Blipstream’ one minute, before introducing new talent to your ears through Kromestar and his new-wave perspective on the genre the next. Handing the middle section over to a gold-run of Benga’s cuts, the Hatcha mix is just as effective as you could hope – blasting the dubstep canon off into a new direction whilst keeping its anchor firmly in port.